1.The price-cost margin (sometimes called markup) m for an imperfectly
competitive firm is defined as m=P-MC/P. Find the relationship between the
elasticity of the firm’s demand curve and the profit-maximizing m.
2.Peter had the following utility function: U(X, Y)=X^1/2+Y^1/2 where X is his
consumption of candy bars, with price 1, and Y is the consumption of
espressos, with price 3. Please derive Peter’s demand function for candy
bars and espressos.
3.Suppose that the level of the required reserve ratio on checkable deposits
was 0.10. Also assume that the public’s holdings of currency were constant,
as were banks’ desired excess reserves. Analyze the effects on the money
supply of a 2000 open-market sale of securities by the central bank. In your
answer, explain the role of the banking system in adjusting to this monetary
policy action.
4.Suppose an economy described by the Solow model is in a steady state with
population growth n of 1.0% per year and technological progress rate 2.0% per
year. Suppose further that the capital share of output is 0.3. If you used
the growth-accounting equation to divide output growth into three sources,
namely, capital, labor, and total factor productivity, how much would you
attribute to each source?
抱歉，以上的題目都沒有解答
翻了課本也還是不知道要怎麼解 >"<
麻煩大家幫忙了！
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